Sioux County deputies tell the Sioux City Journal (http://bit.ly/17Ndbqq) that 28-year-old Raul Robles, of Hawarden, Iowa, was installing new rafters on a building project in Hull, Iowa, on Friday when he fell from a platform about 23 feet onto a concrete floor.

Robles was taken by ambulance to a nearby rural hospital and later flown to Avery McKennan Hospital in Sioux Falls, where he remained in intensive care Saturday morning.